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Absorption from a multi-layer circumnuclear medium and reflection from the accretion disc in NGC 1365

Risaliti, G. (2016) Absorption from a multi-layer circumnuclear medium and reflection from the accretion disc in NGC 1365. Astronomische Nachrichten, 337 (4-5). pp. 529-533. ISSN 00046337. http://resolver.caltech.edu/CaltechAUTHORS:20160527-102505729

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Abstract

NGC 1365 hosts an X-ray obscured AGN known for both its variable absorption and its relativistic features in the reflection component. Recent simultaneous observations performed by XMM-Newton and NuSTAR caught the source in a rare, nearly unobscured state, revealing the presence of a warm absorber and a neutral, but low column density (∼ 10^(22) cm^-2) absorber, usually not observable due to thicker layers along the line of sight. Here I propose a multi-layer structure of the circumnuclear medium which can explain all the observed absorption states of this source, and their variability properties. Remarkably, despite the spectral complexity due to this multi-component absorber, the relativistic reflection component (and hence the black hole spin) can be unambiguously measured through a time resolved spectroscopic analysis.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1002/asna.201612342DOIArticle
http://onlinelibrary.wiley.com/doi/10.1002/asna.201612342/abstractPublisherArticle
Additional Information:© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Group:NuSTAR
Record Number:CaltechAUTHORS:20160527-102505729
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20160527-102505729
Official Citation:Risaliti, G. (2016), Absorption from a multi-layer circumnuclear medium and reflection from the accretion disc in NGC 1365. Astron. Nachr., 337: 529–533. doi: 10.1002/asna.201612342
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:67439
Collection:CaltechAUTHORS
Deposited By: Joy Painter
Deposited On:27 May 2016 17:31
Last Modified:27 May 2016 17:31

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